Common Crawl maintains a free,open repository of web crawl data that can be used by anyone.
Common Crawl is a 501(c)(3) non–profit founded in 2007. We make wholesale extraction, transformation and analysis of open web data accessible to researchers.
A WCAG colour contrast audit of 240 top domains using Common Crawl's February 2026 archive finds four in ten colour pairings fall short of accessibility thresholds. Only one in five sites are fully compliant.
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